PT-2021-11215 · Utimaco · Utimaco Securityserver

Published 2021-03-18 · Updated 2021-06-17 · CVE-2020-26155

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Utimaco SecurityServer versions 4.20.0.4 through 4.31.1.0

Description: The issue allows for binaries to be manipulated by non-administrator users due to weak Read/Write permissions for authenticated users on multiple files and folders. Additionally, entries made to the PATH environment variable could enable an attacker to perform a DLL hijacking attack.

Recommendations: For Utimaco SecurityServer versions 4.20.0.4 through 4.31.1.0, consider restricting the Read/Write permissions for authenticated users to prevent binary manipulation. As a temporary workaround, restrict access to the PATH environment variable to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Incorrect Permission

Uncontrolled Search Path Element

Weakness Enumeration

CWE-732

CWE-427

Related Identifiers

CVE-2020-26155

Affected Products

Utimaco Securityserver

References · 5

• 🔥 https://hsm.utimaco.com/products-hardware-security-modules/general-purpose-hsm · Exploit
• https://osv.dev/vulnerability/CVE-2020-26155 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-26155 · Security Note
• https://t.me/cibsecurity/25123 · Telegram Post
• https://secureyourit.co.uk/wp/2021/03/13/utimaco-cve-2020-26155 · Note